AMR long tubes with high flow catted X pipe great sound but loud with any custom muffler - GT500 is the least aggressive
You have the same setup as I do, (different brand headers But probably don't sound much different). I like the sound a lot. I'm just looking for a little more bite at WOT and a little more gurgle when downshifting. I had the Flowmaster outlaws on there with this setup before I put the GT500's on and it was ridiculously loud. Everyone could hear me coming down the street. Which didn't allow me to tear it up much without attracting attention.